docs: Remove 's' from Confirm Credential sample.

Change-Id: I4b33fec58014c54594210e0f5f4e759393adc618
diff --git a/docs/html/preview/samples.jd b/docs/html/preview/samples.jd
index 4a4554f..bccc897 100644
--- a/docs/html/preview/samples.jd
+++ b/docs/html/preview/samples.jd
@@ -24,13 +24,13 @@
 
 <p><a href="https://github.com/googlesamples/android-RuntimePermissions">Get it on GitHub</a></p>
 
-<h3 id="ConfirmCredentials">Confirm Credentials</h3>
+<h3 id="ConfirmCredentials">Confirm Credential</h3>
 
 <p>
  This sample demonstrates how to use device credentials as an authentication method in your app.
 </p>
 
-<p><a href="https://github.com/googlesamples/android-ConfirmCredentials">Get it on
+<p><a href="https://github.com/googlesamples/android-ConfirmCredential">Get it on
 GitHub</a></p>
 
 <h3 id="FingerprintDialog">Fingerprint Dialog</h3>